Sealing gasket for neck and closure structures



J. S. REID Nov. 10, I931.

SEALING GASKET FOR NECK AND CLOSURE STRUCTURES Filed Dec. 19. 1928 I I INVENTOR Ja/wasdifiL /p ATTORNEY? Patented Nov. 10, 1931 UNITED STATES PATENT OFFICE JAMFS S. REID, OF CLEVELAND, OHIO, ASSIGNOR- TO THE EATON AXLE AND SPRING- COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO SEALING GASKET FOR NECK AND CLOSURE STRUCTURES I Application filed December 19, 1928. Serial No. 827,054.

This invention relates to improvements in sealing gaskets for neck and closure structures and more particularly, for neck and closure structures of the bayonet joint type.

These structures are used, for example, with the radiators and the gasoline tanks of auto-' mobiles and each includes a tubular neck having one end adapted to be secured'to the radiator or gasoline tank around the opening 1 therein and a closure adapted to be detachably connected to the other end of the neck, the sealing gasket being interposed between the closure and the neck.

The general object of the present invention is the provision of an improved sealing gasket for neck and closure structures of the character described, said gasket includingan annular insert of cork or other yieldable material protected by a copper or other soft metal jacket, said jacket being in one piece and being provided with a cylindrical centering extension for telescopic cooperation with the neck of the structure; and which gasket may, if desired, be easily and positively secured to the closure of the structure so that it will always be maintained in assembled relation therewith.

Further objects of the invention are in part obvious and in part will appear more in detail hereinafter.

In the drawings, Fig. 1 is a central vertical sectional view of one form of neck and closure structure having my improved sealing gasket; Fig. 2 is a top plan view of said gasket; Fig. 3 is a central vertical sectional view of said gasket; Fig. 4 is a top plan view, of the neck of the structure shown in Fig. 1; and Fig. 5 is a central vertical sectional View of said neck on the line 55, Fig. 1.

In the present embodiment of the invention, I have illustrated a neck and closure structure of the form shown in my Patent No. 1,593,847 of July 27, 1926, to which patent reference may be had, if desired.

integral part of said receptacle or a separate The neck of the structure here illustrated.

member suitably secured thereto, the latter arrangement being here shown with said body member provided witha laterally extending base flange 4 adapted to be welded or otherwise suitablysecured to the receptacle 3. Said body member is provided at its upper end with an inwardly extending transverse wall 5 which terminates in a depending flange 6. At two diametrically opposed points, portions of wall 5 and flange 6 are cut away to provide two opposed passageways 7 throuh which are adapted to be passed the locking fingers of the closure of the structure, as will later appear. The cutting away of portions of said wall and said-flange provides two depending flange portions 6 each of substantially semi-circular form and the lower edges of said flange portions are inclined to provide cam surfaces 8 along which ride the closure locking fingers in effecting detachable connection of the closure to the neck. To limit rotary movement of said closure locking fingers up along said cam surfaces, each of the flange portions 6 is provided with a depending stop projection 9 adjacent the inner end or the high point of its cam surface, and adjacent these stop projections each cam surface is provided with a dwell 10, in which dwells the closure locking fingers are adapted to seat when the closure is completely connected to'the neck, all as will later appear.

The closure of the structure includes a body member havin a dome-shaped top portion 15-and a depen ing cylindrical skirt portion 16 having a diameter slightly larger than that of the tubular neck body member 1, as clearly indicated in Fig. 1. Crimped or otherwise suitably secured to the closure body member at the junction of the top and skirt portions thereof is the edge portion 17 of a transverse disc 18 having a central cavity within which is crimped or otherwise suitably secured the substantially circular base portion 20 of the closure locking member. Said locking member also includes two diametrically opposed resilient locking fingers 21 extending downwardly and outwardly from the base portion 20 thereof, clearly shown in Fig. 1.

The closure is detachably connected to the neck by passing the locking fingers 21 thereof downwardly through the neck passageways 7 the closure being then turned in a clockwise direction which causes the closure locking fingers to ride up the neck cam surfaces 8 until they reach the dwells 10 therein, further rotary movement in this direction of the closure locking fingers being prevented by the stop projections 9. To remove the closure from the neck, it is only necessary to turn the closure in the reverse direction, whereupon the closure locking fingers leave the dwells 10, ride down the cam surfaces 8 until they reach the passageways 7, after which the closure can be readily lifted from the neck, all as will be readily understood. For sealing purposes, a resilient gasket is usually interposed between the closure and the neck of such a structure, said gasket lying between and engaging the top transverse flange 5 of the neck and the lower marginal surface of the transverse disc 18 of the closure. These gaskets are usually of cork, rubber or other material having the desired amount of resiliency but which are more or less rapidly deteriorated if subjected to certain liquids, such as the anti-freezing solutions put into automobile radiators in the winter.

The present improved gasket includes an insert 25 which in size and shape corresponds to the annular gasket usually employed with neck and closure structures of this character. This insert is preferably of cork or other like material having the necessary or desirable resiliency which also has the disadvantage above mentioned of being more or less rapidly deteriorated if subjected to certain anti-freezing solutions. To protect this in-'- sert, a jacket is therefore provided for it, which jacket is made of copper or other soft metal. It is preferably made in one piece and includes an annular top portion 26 which covers and engages the top surface of the insert; a cylindrical depending portion 27 which engages the inner cylindrical surface of the insert; an annular bottom portion 28 parallel with the annular top portion 26 and engaging the entire lower surface of the insert; and a cylindrical centering extension 29 depending from the outer edge of the annular bottom portion 28 and adapted for telescopic cooperation with the upper end of the cylindrical body member 1 of the neck.

When the gasket is interposed between the closure and the neck, as in Fig. 1, the upper surface of the acket top portion 26 engages the lower marginal surface of the closure transverse disc 18 and the lower surface of the jacket bottom portion 28 engages the top surface of the neck transverse wall 5. The depending extension 29 of the acket surrounds the upper end of the neck body member '1, as indicated. The top, bottom and inner surfaces of the cork insert 25 are protected from any liquid splashing upwardly through the neck body member 1, so that the effective life of said insert is materially prolonged.

It is, of course, desirable to have the gasket remain in assembled relation with the closure Whm the latter is removed from the neck, and this may be done by, having the outer edge 30 of the gasket jacket top portion 26 crimped to the body member of the closure at the junction of the topand skirt portion thereof. The transverse disc 18 of the closure is crimped to the body member thereof at the junction of the top and skirt portions thereof so that one crimpi 1g operation will serve to connect both the disc 18 and the gasket jacket to the body member of the closure, as will be readily understood. Usually, and as shown, the gasket. will be made of such width that the closure locking fingers will extend beneath the gasket so that if no special means is employed for maintaining the gasket in assembled relation with theclosure, these locking fingers will prevent the gasket from entirely escaping from the closure, as will be readily understood.

What I claim is:

1. In combination With a tubular neck and a detachable bayonet-joint closure for one end thereof, of a gasket for sealing cooperation with both said neck and said closure; said neck including a tubular 'body member provided at its end to be closed with a transverse gasket-engaging'wall and cam portions adjacent thereto; said closure including a transverse gasket-engaging wall and resilient fingers for locking engagement with the cam portions of said neck; and said gasket having portions for sealing cooperation with the transverse Walls of both the closure and the neck and being also provided with centering extension means for telescopic relation with the tubular body member of said neck.

2. In combination with a tubular neck and a detachable bayonet-joint closure for one end thereof, of a gasket for sealing cooperation with both said neck and said closure; said neck including a tubular body member provided at its end to be closed with a transverse gasket-engaging wall and cam portions adjacent thereto; said closure including a transverse gasket-engaging wall and resilient fingers for locking engagement with the cam portions of said neck; and said gasket having portions for sealing cooperation with the transverse walls of both the closure and the neck and being also provided with a cylindrical centering extension for telescopic relation with the outer surface of the tubular body member of said neck.

3. In combination with a tubular neck and a detachable bayonet-joint closure for one end thereof, of a gasket for sealing cooperation with both said neck and said closure; said neck including a tubular body member provided at its end to be closed with a trans verse gasket-engaging wall and cam portions adjacent thereto; said closure including a ,transverse gasket-engaging wall and resilient fingers for locking engagement with the cam portions of said neck; and said gasket including an insert of readily yieldable material and a protecting metal jacket therefor having portions for sealing engagement with the transverse walls of both the closure and the neck and being also provided with centering means for telescopic relation with the tubular body member of said neck.

4. In combination with a tubular neck and a detachable bayonet-joint closure for one end thereof. of a gasket for sealing. cooperation with both said neck and said closure:

said neck including a tubular bodv member provided at its end to be closed with a transverse gasket-engaging wall and cam portions adjacent thereto: said closure including a end thereof. of a gasket for sealing cooperation with both said neck and said closure: said neck including a tubular bodv member provided at its end to be closed with a transverse gasket-engaging wall and cam portions adjacent thereto; said closure including a transverse gasket-engaging wall and resilient fingers for locking engagement with the cam portions of said neck: and .said gasket including an insert of readily yieldable material and a protecting metal jacket therefor having a top portion secured to said closure for sealing cooperation with the transverse wall of the closure and a bottom portion for sealing cooperation with the transverse wall of the neck, said bottom portion being provided with centering extension means for telescopic relation with the tubular body member of saidneck.

6. In combination with a tubular neck and a detachable bayonet-joint closure for one end thereof, of a gasket for sealing cooperation with both said neck and said closure; said neck including a tubular body member provided at its end to be closed with a transverse gasket-engaging wall and cam portions adjacent thereto; said closure including a transverse gasket-engaging wall and resilient fingers for locking engagement with the cam portions of said neck; and said gasket including a generally flat annular insert of readily yieldable material and a protecting metal jacket therefor having a top portion secured to said closure for sealing cooperation with the transverse wall of the closure, a bottom portion for sealing cooperation with the transverse wall of the neck, and an intermediate portion connecting said top and bottom portions and engaging the inner side of said gasket, said bottom portion being provided with a cylindrical centering extension for telescopic relation with the tubular body member of said neck.

In testimony whereof I hereby aflix my signature.

JAMES S. REID. 

